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@cpcloud cpcloud commented Sep 18, 2025

Closes #132. Add CI wheel builds and test matrix entries for free-threaded builds.

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cpcloud commented Sep 18, 2025

/ok to test

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cpcloud commented Sep 18, 2025

/ok to test

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cpcloud commented Sep 18, 2025

/ok to test

{ "ARCH": "amd64", "PY_VER": "3.12", "CUDA_VER": "13.0.1", "LOCAL_CTK": "0", "GPU": "l4", "DRIVER": "latest" },
{ "ARCH": "amd64", "PY_VER": "3.13", "CUDA_VER": "12.9.1", "LOCAL_CTK": "0", "GPU": "l4", "DRIVER": "latest" },
{ "ARCH": "amd64", "PY_VER": "3.13", "CUDA_VER": "13.0.1", "LOCAL_CTK": "1", "GPU": "l4", "DRIVER": "latest" },
{ "ARCH": "amd64", "PY_VER": "3.13t", "CUDA_VER": "12.9.1", "LOCAL_CTK": "0", "GPU": "l4", "DRIVER": "latest" },
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This requires cuda-bindings 12.9.x to be rebuilt and merged first

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Ok, what needs to happen for that?

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Have a backport version of this PR merged first, as implied by our new shiny CI doc we fetch the 12.x wheels from the 12.9.x branch.

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Ok, I'll leave it out for now then.

@leofang leofang added P0 High priority - Must do! CI/CD CI/CD infrastructure packaging Anything related to wheels or Conda packages cuda.bindings Everything related to the cuda.bindings module cuda.core Everything related to the cuda.core module labels Sep 19, 2025
@leofang leofang added this to the cuda.core beta 7 milestone Sep 19, 2025
@cpcloud cpcloud force-pushed the free-threading-builds branch from b2a70a7 to 48ea7d4 Compare September 19, 2025 13:22
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cpcloud commented Sep 19, 2025

/ok to test

@cpcloud cpcloud changed the title free threading builds ci(python): free threading builds Sep 19, 2025
@cpcloud cpcloud changed the title ci(python): free threading builds ci: free threading builds Sep 19, 2025
@cpcloud cpcloud changed the title ci: free threading builds ci: python 3.13 free threading builds Sep 19, 2025
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cpcloud commented Sep 19, 2025

Looks like I am probably missing a comma in some JSON. That's what I get for copypasta-ing!

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cpcloud commented Sep 19, 2025

/ok to test

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cpcloud commented Sep 19, 2025

Tests are currently not able to run because test-cu13 cannot be installed, because there's no cupy package available for free-threading builds.

Unfortunately there's also no way to get that metadata at build time (see https://packaging.python.org/en/latest/specifications/dependency-specifiers/#dependency-specifiers for what's available. I tried them all, and saw nothing that indicated whether a build was a FT build).

I'll have to come up with a WAR to skip installation of that dependency.

@cpcloud cpcloud force-pushed the free-threading-builds branch from de5815a to 96ee1c2 Compare September 19, 2025 16:25
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cpcloud commented Sep 19, 2025

/ok to test

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cpcloud commented Sep 19, 2025

Ah, I need to edit the build matrix I think.

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cpcloud commented Sep 19, 2025

/ok to test

@cpcloud cpcloud requested a review from leofang September 19, 2025 18:40
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leofang commented Sep 19, 2025

Thanks, Phillip! Code-wise LGTM! A few questions on the next steps you have in mind:

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cpcloud commented Sep 19, 2025

Will do each of those in a separate PR!

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Sounds good, thanks! We also need to backport this.

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cpcloud commented Sep 19, 2025

Ok, I will get started on the backport then. Merging.

@cpcloud cpcloud merged commit c4f4ffe into NVIDIA:main Sep 19, 2025
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@cpcloud cpcloud deleted the free-threading-builds branch September 19, 2025 18:52
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cpcloud added a commit to cpcloud/cuda-python that referenced this pull request Sep 19, 2025
* ci: build free-threaded wheels

* build(deps): bump cython lower bound

* ci: enable freethreading for 3.13 in cibuildwheel

* ci: bump cython lower bound in cuda_core

* ci: skip tests that require llvmlite because it does not ship a free-threading build wheel

* ci: remove filtering out of cuda-bindings artifacts

* ci: remove redundant environment variable setting

* ci: fix syntax errors in ci/test-matrix.json

* ci: add optional dependency group to avoid installation of cupy when testing the FT builds

* ci: remove 12.9.x from builds for now
cpcloud added a commit to cpcloud/cuda-python that referenced this pull request Sep 23, 2025
* ci: build free-threaded wheels

* build(deps): bump cython lower bound

* ci: enable freethreading for 3.13 in cibuildwheel

* ci: bump cython lower bound in cuda_core

* ci: skip tests that require llvmlite because it does not ship a free-threading build wheel

* ci: remove filtering out of cuda-bindings artifacts

* ci: remove redundant environment variable setting

* ci: fix syntax errors in ci/test-matrix.json

* ci: add optional dependency group to avoid installation of cupy when testing the FT builds

* ci: remove 12.9.x from builds for now
leofang added a commit to leofang/cuda-python that referenced this pull request Sep 29, 2025
leofang added a commit to leofang/cuda-python that referenced this pull request Sep 29, 2025
cpcloud pushed a commit that referenced this pull request Sep 29, 2025
* backport PR #986

* backport PR #1005
@cpcloud cpcloud mentioned this pull request Oct 8, 2025
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Add a build/release process to support 2 build flavors

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